Jointed reclining bar for adjustable chairs



W. F. 'KOKEN.

JOINTED REGLINING BAR FOR ADJUSTABLE CHAIRS.

APPLICATION FILED APR- 8, I922.

Patented Nov. 28, 1922.

ZNVENTOR M/As F x2690.

A T TORNE Y5 skilled in the art to which reamed Nov. as, 1922. Y

JOINTED REGLINING- BAR Application filed April 8,

To aZZwhOm Ztmay concern.

Befit known that I, WALTER F. Kermit a citizen of the United States, residing at it. Louis, Missouri, have invented a certainnew and useful Improvement in Jointed Reclining Bars for Adjustable Chairs, of which the following is a full, clear, and exact, description, such as will enable others it appertains to ,make and; use the same. 7

This inventionrelates to chairs of the type that comprise an adjustable back and apron and particularly to the means, commonly referred to as a reclining bar, that is used in such chairs for holding the back and apron in adjusted position. i

One object of my present inventionis to provide a reclining bar that permits of, a relatively great movement of the apron between its two extreme positions and which is constructed insucha manner; that it will not interfere with the movements of the workman standing adjacent the chair when the back and apron are in an uprightposh tionr i Another object is to provide a chairof the general type referred to that comprises, a

seat and an apron, both of which move forwardly relatively to'the frame of the chair when the back is lowered or moved down wardly into horizontal alignment with the seat and apron, and'means for holding the bacln seat and apron inadjusted position, consisting of a jointed recliningbar provided intermediate it's ends with a swinging portion that is pivotally connected to the frame of the chair. Other objects and desirable features of my invention will be hereinafter pointed out. o 1

lFigure 1 of the drawings is aside elevational view of a chair equipped with a jointed reclining bar constructed in accordance with my invention, showing "the back and apron ofthe chair arranged inan upright position; and v v igu're 2 is aside elevational VlGV ShOV, ing said back and apron arranged in v-ahori- Zontal position in horizontal; alignment with the seat ;of the chair. a i I Referring to the drawings which illus- 1 wnn'rnnr: KQKEN, or s'n. LOUIS, MISSOURI;

non ADJUSTABLE onnms.

1922. ara mommy/7s.

on a vertically-adjustable stem F arranged in a base G, the frame E being provided with upwardlysprojecting supports 1 on which levers Q'and 3 are pivotally mounted.

*As my present invention relates to the re ,cliningbar or the means that is used for retaining the adjustable elements of the chair in adjusted position, I have not illustrated all of the parts of the chair, but it will be understood that in practice the frame E of the chair is provided adjacent its rear end withtwo upwardly-projecting supports, each of which is provided with a pivotally mounted lever 2 that isconnected to same by'a pivot 2 and said frame E is provided adjacent its front end with apair of upwardly-projecting supports 1, each of which is provided with a pivotally mounted lever 23 that is connected to same by a pivot 3. The levers 2-are provided with integral portions 2 vthink/are rigidly connected, to the back 3 ofthe chair, and the levers 3 are provided withintegral portions 3 that are rigidl connected to the apron cor the chair. The seat A of thechair is provided at; its side edges with longitudinally-disposed bars 4' whose rear ends are pivotally connected at to'the lower ends of the levers 2 and whose front ends are pivotally connected at 6 to the levers 3 at points below thepivots or axes S on which the levers 3- swing. The arms D of the chair arepivotally connected to the'upper ends of the levers 2 and -3 bypivot pins 7 that pass through depending ears 8 on said arms. l Jhen the back and apron of the chair are arrangedin an upright position, as shown in Figure 1, the arms D are spaced high enough above the seat A to form supports on which the arms ofthe occupant of the chair rest comfortably. When the back B islowered or moved downwardly into a horizontalposition, as shown in Figure 2,

the apron C moves forwardly and upwardiy, the seat A also moves forwardly and upwardly and the arms D move downwardly and rearwardly intoclose proximity to the seat, thus producing a chair that is comfortable when adjusted so as to permit the occupant to lie in a horizontal position, due to the fact that the arms 1) are arranged close enough to theseat to permit the occupants arms to rest comfortably on said arms D. a

My present invention relates to the means that is used for holding the movable elements of the chair in adjusted position. it consists of a jointed reclinin bar composed of an intermediate portion 1 preferably an oscillating member carried by the frame E of the chair, a front portion H that is pivotally connected to the apron C of the chair and a rearv portion H that is embraced by a reclining bar clamp l of conventional construction that consists of two spring-pressed jaws mounted on an operating shaft J in such a manner that they can rock or turn on said shaft J sufiiciently to permit the rear portion H iof the jointed reclining bar to assume an upwardly-inclined position, as shown in Figure l, or a horizontal position, as shown in Figure 2. The intermediate portion H of the reclining bar is preferably formed by a substantially Y-shaped lever or member having three diverging or angularly-disposed legs 9, 10 and 11 the leg 9 being pivotally connected at 9* to the frame E of the chair, the leg 10 being pivotally connected at 1O tothe front portion H ofthe reclining bar and the leg 11 being pivotally connected at l1 to the rear portion H of the reclining bar.

hen the back and apron of the chair are arranged in an upright position, as shown in Figure l, the intermediate member H of the reclining bar occupies the position shown in Figure 1, thus holding the front and rear portions H and H of said bar in such a position that the said rear portion will not project beyond the seat A of the chair, and thus interfere with the movements of the workman standing in proximity to the chair. lVhen the back of the chair is loweredthe intermediate member Hv of the reciining bar will swing forwardly and upwardly about the pivot 9, and thus increase the length of the reclining bar sufficiently to provide for the forward and upward movement of the apron C into its horizontal position.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is L'ln a chair of the type that comprises an adjustable back and apron that are ElflfitPtQi, to be moved from an upright position into a horizontal position, a reclining bar for holding said elements in adjusted ing position comprising an oscillating member mounted on a part of the chair that is stationary with respect to said back and apron, a clamping device, means co-operating with said clamping device for adjusting and holding said oscillating member, and a link connection between said oscillating member and said apron.

2. In a chair of the'type that comprises a frame and an adjustable back and apron on said frame that are adapted to be moved from an upright position into a horizontal position, a reclining bar for holding said back and apron in adjusted position comprising front and rear portions, and an intermediate portion pivotally connected to said front and rear portions and consisting of a member having three a-ngularly-disposed parts and oscillatingly mounted on said frame.

3. In a chair of the type that comprises an adjustable back and apron that are adapt ed to be moved from an upright position into a horizontal position, a reclining bar for holding said elements in adjusted position comprising an intermediate member of substantially "Y-shape in outline, one of whose parts is pivotally connected to a stationary part of the chair, front and'rear members pivotally connected to the other parts of said intermediate member, said front member being pivotally connected to the apron, and a retaining clamp co-operating with said rear member.

4. A chair, comprising a frame, an adjustable back and apron combined in such a manner that they move in unison, and means for retaining said elements in adjusted position comprising an oscillating member mounted'on said frame, a part pivotally connected to said oscillating member and to said apron, and another part pivotally connected to said oscillating member and arranged to be engagedby a clamp,

5. A chair, comprising a frame, an ad justabie back and apron combined in such a manner that they move in unison, an oscillating member mounted on said frame,

a link connection between said oscillating i member and the apron of the chair, a part pivotally connected to said oscillating memher, and a clamping device that co-operates with said part. c

6. A chair provided with a frame, an adjustable back, seat and apron combined in such a manner that the seat and apron move upwardly and forwardly when the back is lowered, a jointed reclining bar comprisan intermediate portion pivotally mounted on said frame, a front portion pivotally connected to said apron and a rear portion pivotally connected to said intermediate portion, and a clamping device cooperating with the rear portion of said reclining bar.

7. A chair, comprising a frame, an adlink that connects said oscillating member justable back, seat and apron combined in to the apron, a bar pivotally connected to' such a manner that the seat and apron move said oscillating member, and a clamping de 10 -upwardly and forwardly when the back is vice that co-operates with said bar, for the 5 lowered an oscillating member pivotally purpose described.

mounted on said frame and comprising a plurality of angu1ar1y-disposed portions, a WALTER F. KOKEN. 

